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https://github.com/reactos/wine.git
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464 lines
12 KiB
C
464 lines
12 KiB
C
/*
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* Generate include file dependencies
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*
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* Copyright 1996 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* Max first-level includes per file */
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#define MAX_INCLUDES 200
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typedef struct _INCL_FILE
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{
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struct _INCL_FILE *next;
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char *name;
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char *filename;
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struct _INCL_FILE *included_by; /* file that included this one */
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int included_line; /* line where this file was included */
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int system; /* is it a system include (#include <name>) */
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struct _INCL_FILE *owner;
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struct _INCL_FILE *files[MAX_INCLUDES];
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} INCL_FILE;
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static INCL_FILE *firstSrc;
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static INCL_FILE *firstInclude;
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typedef struct _INCL_PATH
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{
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struct _INCL_PATH *next;
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const char *name;
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} INCL_PATH;
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static INCL_PATH *firstPath;
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static const char *SrcDir = NULL;
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static const char *OutputFileName = "Makefile";
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static const char *Separator = "### Dependencies";
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static const char *ProgramName;
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static const char Usage[] =
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"Usage: %s [options] [files]\n"
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"Options:\n"
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" -Idir Search for include files in directory 'dir'\n"
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" -Cdir Search for source files in directory 'dir'\n"
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" -fxxx Store output in file 'xxx' (default: Makefile)\n"
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" -sxxx Use 'xxx' as separator (default: \"### Dependencies\")\n";
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/*******************************************************************
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* xmalloc
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*/
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static void *xmalloc( int size )
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{
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void *res;
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if (!(res = malloc (size ? size : 1)))
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{
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fprintf( stderr, "%s: Virtual memory exhausted.\n", ProgramName );
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exit(1);
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}
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return res;
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}
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/*******************************************************************
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* xstrdup
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*/
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static char *xstrdup( const char *str )
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{
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char *res = strdup( str );
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if (!res)
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{
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fprintf( stderr, "%s: Virtual memory exhausted.\n", ProgramName );
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exit(1);
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}
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return res;
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}
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/*******************************************************************
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* is_generated
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*
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* Test if a given file type is generated during the make process
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*/
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static int is_generated( const char *name )
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{
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static const char * const extensions[] = { ".tab.h", ".mc.rc" };
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size_t i, len = strlen(name);
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for (i = 0; i < sizeof(extensions)/sizeof(extensions[0]); i++)
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{
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if (len <= strlen(extensions[i])) continue;
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if (!strcmp( name + len - strlen(extensions[i]), extensions[i] )) return 1;
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}
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return 0;
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}
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/*******************************************************************
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* add_include_path
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*
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* Add a directory to the include path.
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*/
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static void add_include_path( const char *name )
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{
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INCL_PATH *path = xmalloc( sizeof(*path) );
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INCL_PATH **p = &firstPath;
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while (*p) p = &(*p)->next;
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*p = path;
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path->next = NULL;
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path->name = name;
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}
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/*******************************************************************
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* add_src_file
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*
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* Add a source file to the list.
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*/
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static INCL_FILE *add_src_file( const char *name )
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{
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INCL_FILE **p = &firstSrc;
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INCL_FILE *file = xmalloc( sizeof(*file) );
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memset( file, 0, sizeof(*file) );
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file->name = xstrdup(name);
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while (*p) p = &(*p)->next;
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*p = file;
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return file;
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}
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/*******************************************************************
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* add_include
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*
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* Add an include file if it doesn't already exists.
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*/
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static INCL_FILE *add_include( INCL_FILE *pFile, const char *name, int line, int system )
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{
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INCL_FILE **p = &firstInclude;
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int pos;
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for (pos = 0; pos < MAX_INCLUDES; pos++) if (!pFile->files[pos]) break;
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if (pos >= MAX_INCLUDES)
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{
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fprintf( stderr, "%s: %s: too many included files, please fix MAX_INCLUDES\n",
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ProgramName, pFile->name );
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exit(1);
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}
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while (*p && strcmp( name, (*p)->name )) p = &(*p)->next;
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if (!*p)
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{
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*p = xmalloc( sizeof(INCL_FILE) );
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memset( *p, 0, sizeof(INCL_FILE) );
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(*p)->name = xstrdup(name);
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(*p)->included_by = pFile;
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(*p)->included_line = line;
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(*p)->system = system || pFile->system;
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}
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pFile->files[pos] = *p;
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return *p;
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}
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/*******************************************************************
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* open_src_file
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*/
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static FILE *open_src_file( INCL_FILE *pFile )
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{
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FILE *file;
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if (SrcDir)
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{
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pFile->filename = xmalloc( strlen(SrcDir) + strlen(pFile->name) + 2 );
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strcpy( pFile->filename, SrcDir );
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strcat( pFile->filename, "/" );
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strcat( pFile->filename, pFile->name );
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}
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else pFile->filename = xstrdup( pFile->name );
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if (!(file = fopen( pFile->filename, "r" )))
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{
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perror( pFile->filename );
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exit(1);
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}
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return file;
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}
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/*******************************************************************
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* open_include_file
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*/
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static FILE *open_include_file( INCL_FILE *pFile )
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{
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FILE *file = NULL;
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INCL_PATH *path;
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for (path = firstPath; path; path = path->next)
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{
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char *filename = xmalloc(strlen(path->name) + strlen(pFile->name) + 2);
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strcpy( filename, path->name );
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strcat( filename, "/" );
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strcat( filename, pFile->name );
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if ((file = fopen( filename, "r" )))
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{
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pFile->filename = filename;
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break;
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}
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free( filename );
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}
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if (!file && pFile->system) return NULL; /* ignore system files we cannot find */
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/* try in src file directory */
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if (!file)
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{
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char *p = strrchr(pFile->included_by->filename, '/');
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if (p)
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{
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int l = p - pFile->included_by->filename + 1;
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char *filename = xmalloc(l + strlen(pFile->name) + 1);
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memcpy( filename, pFile->included_by->filename, l );
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strcpy( filename + l, pFile->name );
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if ((file = fopen( filename, "r" ))) pFile->filename = filename;
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else free( filename );
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}
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}
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if (!file)
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{
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if (pFile->included_by->system) return NULL; /* ignore if included by a system file */
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if (firstPath) perror( pFile->name );
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else fprintf( stderr, "%s: %s: File not found\n",
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ProgramName, pFile->name );
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while (pFile->included_by)
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{
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fprintf( stderr, " %s was first included from %s:%d\n",
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pFile->name, pFile->included_by->name, pFile->included_line );
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pFile = pFile->included_by;
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}
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exit(1);
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}
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return file;
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}
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/*******************************************************************
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* parse_file
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*/
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static void parse_file( INCL_FILE *pFile, int src )
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{
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char buffer[1024];
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char *include;
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int line = 0;
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FILE *file;
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if (is_generated( pFile->name ))
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{
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/* file is generated during make, don't try to open it */
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pFile->filename = xstrdup( pFile->name );
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return;
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}
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file = src ? open_src_file( pFile ) : open_include_file( pFile );
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if (!file) return;
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while (fgets( buffer, sizeof(buffer)-1, file ))
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{
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char quote;
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char *p = buffer;
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line++;
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while (*p && isspace(*p)) p++;
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if (*p++ != '#') continue;
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while (*p && isspace(*p)) p++;
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if (strncmp( p, "include", 7 )) continue;
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p += 7;
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while (*p && isspace(*p)) p++;
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if (*p != '\"' && *p != '<' ) continue;
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quote = *p++;
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if (quote == '<') quote = '>';
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include = p;
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while (*p && (*p != quote)) p++;
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if (!*p)
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{
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fprintf( stderr, "%s:%d: Malformed #include directive\n",
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pFile->filename, line );
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exit(1);
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}
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*p = 0;
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add_include( pFile, include, line, (quote == '>') );
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}
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fclose(file);
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}
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/*******************************************************************
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* output_include
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*/
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static void output_include( FILE *file, INCL_FILE *pFile,
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INCL_FILE *owner, int *column )
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{
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int i;
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if (pFile->owner == owner) return;
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if (!pFile->filename) return;
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pFile->owner = owner;
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if (*column + strlen(pFile->filename) + 1 > 70)
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{
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fprintf( file, " \\\n" );
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*column = 0;
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}
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fprintf( file, " %s", pFile->filename );
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*column += strlen(pFile->filename) + 1;
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for (i = 0; i < MAX_INCLUDES; i++)
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if (pFile->files[i]) output_include( file, pFile->files[i],
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owner, column );
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}
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/*******************************************************************
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* output_src
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*/
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static void output_src( FILE *file, INCL_FILE *pFile, int *column )
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{
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char *obj = xstrdup( pFile->name );
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char *ext = strrchr( obj, '.' );
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if (ext && strchr( ext, '/' )) ext = NULL;
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if (ext)
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{
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*ext++ = 0;
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if (!strcmp( ext, "y" )) /* yacc file */
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{
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*column += fprintf( file, "y.tab.o: y.tab.c" );
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}
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else if (!strcmp( ext, "l" )) /* lex file */
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{
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*column += fprintf( file, "%s.o: %s.c", LEX_OUTPUT_ROOT, LEX_OUTPUT_ROOT );
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}
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else if (!strcmp( ext, "rc" )) /* resource file */
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{
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*column += fprintf( file, "%s.res: %s", obj, pFile->filename );
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}
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else if (!strcmp( ext, "mc" )) /* message file */
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{
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*column += fprintf( file, "%s.mc.rc: %s", obj, pFile->filename );
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}
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else
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{
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*column += fprintf( file, "%s.o: %s", obj, pFile->filename );
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}
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}
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free( obj );
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}
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/*******************************************************************
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* output_dependencies
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*/
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static void output_dependencies(void)
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{
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INCL_FILE *pFile;
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int i, column;
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FILE *file = NULL;
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char buffer[1024];
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if (Separator && ((file = fopen( OutputFileName, "r+" ))))
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{
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while (fgets( buffer, sizeof(buffer), file ))
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if (!strncmp( buffer, Separator, strlen(Separator) )) break;
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ftruncate( fileno(file), ftell(file) );
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fseek( file, 0L, SEEK_END );
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}
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if (!file)
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{
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if (!(file = fopen( OutputFileName, Separator ? "a" : "w" )))
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{
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perror( OutputFileName );
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exit(1);
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}
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}
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for( pFile = firstSrc; pFile; pFile = pFile->next)
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{
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column = 0;
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output_src( file, pFile, &column );
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for (i = 0; i < MAX_INCLUDES; i++)
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if (pFile->files[i]) output_include( file, pFile->files[i],
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pFile, &column );
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fprintf( file, "\n" );
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}
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fclose(file);
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}
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/*******************************************************************
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* parse_option
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*/
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static void parse_option( const char *opt )
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{
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switch(opt[1])
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{
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case 'I':
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if (opt[2]) add_include_path( opt + 2 );
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break;
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case 'C':
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if (opt[2]) SrcDir = opt + 2;
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else SrcDir = NULL;
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break;
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case 'f':
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if (opt[2]) OutputFileName = opt + 2;
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break;
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case 's':
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if (opt[2]) Separator = opt + 2;
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else Separator = NULL;
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break;
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default:
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fprintf( stderr, "Unknown option '%s'\n", opt );
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fprintf( stderr, Usage, ProgramName );
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exit(1);
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}
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}
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/*******************************************************************
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* main
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*/
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int main( int argc, char *argv[] )
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{
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INCL_FILE *pFile;
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ProgramName = argv[0];
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while (argc > 1)
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{
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if (*argv[1] == '-') parse_option( argv[1] );
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else
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{
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pFile = add_src_file( argv[1] );
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parse_file( pFile, 1 );
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}
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argc--;
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argv++;
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}
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for (pFile = firstInclude; pFile; pFile = pFile->next)
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parse_file( pFile, 0 );
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if( firstSrc ) output_dependencies();
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return 0;
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}
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